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GraphQL Query Tester – Free Online GraphQL Query Runner & API Explorer
The GraphQL Query Tester is a free, browser-based tool designed for developers to test, debug, and validate GraphQL queries and mutations instantly. With this online GraphQL playground, you can connect to any GraphQL endpoint, execute queries, view real-time results, and analyze response structures — all in one interface.
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GraphQL Query Tester FAQs
Answers to common questions about using the GraphQL Query Tester tool.
A GraphQL Query Tester lets you run and test GraphQL queries or mutations against APIs. It helps you check if your queries return the expected results before integrating them into your app.
Yes! You can connect to any valid GraphQL endpoint and run queries or mutations instantly. Just paste your API URL and click “Run Query.”
The tool supports JSON-formatted responses and provides a formatted output viewer for easy debugging.
Yes, many GraphQL APIs require authentication. You can include headers like Authorization tokens in your queries for testing secure endpoints.
No installation is needed. This tool runs entirely in your browser, offering a full GraphQL playground experience online.
It’s designed for web developers, API testers, and backend engineers who want a quick, reliable way to test and validate GraphQL requests.